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1999 BMW 528IT E39

2.8L I6 M52 TouringRWDAUTOMATICgas
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Repairs0Labor564Torque2386Fluid7DTC649Battery0Maintenance0Recalls0
P0327moderate severityPowertrain

Knock Sensor 1 Circuit Low Input Bank 1

on 1999 BMW 528iT E39 2.8L I6 M52 Touring · RWD

What this code means

Low voltage from knock sensor 1, Bank 1.

Symptoms

  • Check Engine Light
  • Reduced power

Common causes

  • Open circuit
  • Faulty sensor
  • Loose connector

Diagnostic steps

  1. Test voltage
  2. Check wiring
  3. Verify connector

Repair notes

Repair or replace sensor.

Other Powertrain codes on this vehicle

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